WO2002013572A3 - Method and apparatus for filtering and compressing sound signals - Google Patents

Method and apparatus for filtering and compressing sound signals Download PDF

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Publication number
WO2002013572A3
WO2002013572A3 PCT/US2001/024917 US0124917W WO0213572A3 WO 2002013572 A3 WO2002013572 A3 WO 2002013572A3 US 0124917 W US0124917 W US 0124917W WO 0213572 A3 WO0213572 A3 WO 0213572A3
Authority
WO
WIPO (PCT)
Prior art keywords
speech
frequency bands
levels
sound signals
intelligibility
Prior art date
Application number
PCT/US2001/024917
Other languages
French (fr)
Other versions
WO2002013572A2 (en
Inventor
Zezhang Hou
Original Assignee
Audia Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audia Technology Inc filed Critical Audia Technology Inc
Priority to AU2001283205A priority Critical patent/AU2001283205A1/en
Publication of WO2002013572A2 publication Critical patent/WO2002013572A2/en
Publication of WO2002013572A3 publication Critical patent/WO2002013572A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
    • H04R25/356—Amplitude, e.g. amplitude shift or compression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/43—Signal processing in hearing aids to enhance the speech intelligibility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing

Abstract

Improved approaches are disclosed to filter and compress sound signals so as to achieve not only speech audibility and intelligibility at low levels but also preserves spectrum contrast at high levels. According to one aspect of the invention, gain amounts for different frequency bands are individually constrained based on signal levels for the frequency bands. Hence, the gain amounts for each of the frequency bands may or may not be constrained depending on the corresponding signal levels. As a result, the most critical information for speech intelligibility, speech clarity, and speech quality can be made available to hearing impaired people over wide range of signal level. The invention is particularly useful for hearing aids or other sound systems for the hearing impaired.
PCT/US2001/024917 2000-08-07 2001-08-07 Method and apparatus for filtering and compressing sound signals WO2002013572A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001283205A AU2001283205A1 (en) 2000-08-07 2001-08-07 Method and apparatus for filtering and compressing sound signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22356700P 2000-08-07 2000-08-07
US60/223,567 2000-08-07

Publications (2)

Publication Number Publication Date
WO2002013572A2 WO2002013572A2 (en) 2002-02-14
WO2002013572A3 true WO2002013572A3 (en) 2003-09-25

Family

ID=22837063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/024917 WO2002013572A2 (en) 2000-08-07 2001-08-07 Method and apparatus for filtering and compressing sound signals

Country Status (4)

Country Link
US (1) US6873709B2 (en)
CN (1) CN1470147A (en)
AU (1) AU2001283205A1 (en)
WO (1) WO2002013572A2 (en)

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US6944474B2 (en) * 2001-09-20 2005-09-13 Sound Id Sound enhancement for mobile phones and other products producing personalized audio for users
US7469206B2 (en) 2001-11-29 2008-12-23 Coding Technologies Ab Methods for improving high frequency reconstruction
WO2004010417A2 (en) * 2002-07-24 2004-01-29 Massachusetts Institute Of Technology System and method for distributed gain control for spectrum enhancement
SE0202770D0 (en) 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method of reduction of aliasing is introduced by spectral envelope adjustment in real-valued filterbanks
US20070136050A1 (en) * 2003-07-07 2007-06-14 Koninklijke Philips Electronics N.V. System and method for audio signal processing
US6912289B2 (en) * 2003-10-09 2005-06-28 Unitron Hearing Ltd. Hearing aid and processes for adaptively processing signals therein
US7539614B2 (en) * 2003-11-14 2009-05-26 Nxp B.V. System and method for audio signal processing using different gain factors for voiced and unvoiced phonemes
JP4241443B2 (en) * 2004-03-10 2009-03-18 ソニー株式会社 Audio signal processing apparatus and audio signal processing method
AU2005336068B2 (en) * 2005-09-01 2009-12-10 Widex A/S Method and apparatus for controlling band split compressors in a hearing aid
US7729775B1 (en) * 2006-03-21 2010-06-01 Advanced Bionics, Llc Spectral contrast enhancement in a cochlear implant speech processor
US8521314B2 (en) * 2006-11-01 2013-08-27 Dolby Laboratories Licensing Corporation Hierarchical control path with constraints for audio dynamics processing
US9049524B2 (en) * 2007-03-26 2015-06-02 Cochlear Limited Noise reduction in auditory prostheses
US20090076825A1 (en) * 2007-09-13 2009-03-19 Bionica Corporation Method of enhancing sound for hearing impaired individuals
US20090074203A1 (en) * 2007-09-13 2009-03-19 Bionica Corporation Method of enhancing sound for hearing impaired individuals
US20090074206A1 (en) * 2007-09-13 2009-03-19 Bionica Corporation Method of enhancing sound for hearing impaired individuals
US20090074214A1 (en) * 2007-09-13 2009-03-19 Bionica Corporation Assistive listening system with plug in enhancement platform and communication port to download user preferred processing algorithms
US20090076636A1 (en) * 2007-09-13 2009-03-19 Bionica Corporation Method of enhancing sound for hearing impaired individuals
US20090076804A1 (en) * 2007-09-13 2009-03-19 Bionica Corporation Assistive listening system with memory buffer for instant replay and speech to text conversion
US20090074216A1 (en) * 2007-09-13 2009-03-19 Bionica Corporation Assistive listening system with programmable hearing aid and wireless handheld programmable digital signal processing device
US20090076816A1 (en) * 2007-09-13 2009-03-19 Bionica Corporation Assistive listening system with display and selective visual indicators for sound sources
US8005246B2 (en) 2007-10-23 2011-08-23 Swat/Acr Portfolio Llc Hearing aid apparatus
DE102008024490B4 (en) * 2008-05-21 2011-09-22 Siemens Medical Instruments Pte. Ltd. Filter bank system for hearing aids
US8233637B2 (en) 2009-01-20 2012-07-31 Nokia Corporation Multi-membrane microphone for high-amplitude audio capture
JP2010244602A (en) * 2009-04-03 2010-10-28 Sony Corp Signal processing device, method, and program
US20120278087A1 (en) * 2009-10-07 2012-11-01 Nec Corporation Multiband compressor and method of adjusting the same
WO2011048741A1 (en) * 2009-10-20 2011-04-28 日本電気株式会社 Multiband compressor
DE102009051200B4 (en) * 2009-10-29 2014-06-18 Siemens Medical Instruments Pte. Ltd. Hearing aid and method for feedback suppression with a directional microphone
US8600076B2 (en) * 2009-11-09 2013-12-03 Neofidelity, Inc. Multiband DRC system and method for controlling the same
ES2392306B1 (en) * 2010-02-03 2013-10-02 Sergio CÓRDOBA SOLANO PSYCHOACUSTIC SOUND MANAGEMENT FOR OPTIMIZATION IN AUDIO SYSTEMS OF FIXED AND EVENTUAL FACILITIES.
JP5872163B2 (en) 2011-01-07 2016-03-01 オムロン株式会社 Acoustic transducer and microphone using the acoustic transducer
US9380380B2 (en) 2011-01-07 2016-06-28 Stmicroelectronics S.R.L. Acoustic transducer and interface circuit
WO2013061252A2 (en) 2011-10-24 2013-05-02 Cochlear Limited Post-filter common-gain determination
EP2675063B1 (en) 2012-06-13 2016-04-06 Dialog Semiconductor GmbH Agc circuit with optimized reference signal energy levels for an echo cancelling circuit
JP6441796B2 (en) * 2012-08-06 2018-12-19 ファーザー フラナガンズ ボーイズ ホーム ドゥーイング ビジネス アズ ボーイズ タウン ナショナル リサーチ ホスピタル Multi-band audio compression system and method
WO2015111084A2 (en) 2014-01-27 2015-07-30 Indian Institute Of Technology Bombay Dynamic range compression with low distortion for use in hearing aids and audio systems
US9808623B2 (en) * 2014-10-07 2017-11-07 Oticon Medical A/S Hearing system
CN105280195B (en) 2015-11-04 2018-12-28 腾讯科技（深圳）有限公司 The processing method and processing device of voice signal
US20180254033A1 (en) * 2016-11-01 2018-09-06 Davi Audio Smart Noise Reduction System and Method for Reducing Noise
US11234077B2 (en) * 2019-06-01 2022-01-25 Apple Inc. User interfaces for managing audio exposure

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US5832444A (en) * 1996-09-10 1998-11-03 Schmidt; Jon C. Apparatus for dynamic range compression of an audio signal
WO1998056210A1 (en) * 1997-06-06 1998-12-10 Audiologic Hearing Systems, L.P. Continuous frequency dynamic range audio compressor

Also Published As

Publication number Publication date
CN1470147A (en) 2004-01-21
WO2002013572A2 (en) 2002-02-14
AU2001283205A1 (en) 2002-02-18
US6873709B2 (en) 2005-03-29
US20020015503A1 (en) 2002-02-07

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